28372240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27281}}^1$

素因数の和:27307

約数の個数: 40

約数和(自身を含む): 71042328

約数和(自身を除く): 42670088

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 27281, 54562, 109124, 136405, 218248, 272810, 354653, 436496, 545620, 709306, 1091240, 1418612, 1773265, 2182480, 2837224, 3546530, 5674448, 7093060, 14186120, 28372240]

約数ペア:

[(1, 28372240), (2, 14186120), (4, 7093060), (5, 5674448), (8, 3546530), (10, 2837224), (13, 2182480), (16, 1773265), (20, 1418612), (26, 1091240), (40, 709306), (52, 545620), (65, 436496), (80, 354653), (104, 272810), (130, 218248), (208, 136405), (260, 109124), (520, 54562), (1040, 27281)]